86554

Appears in sequences

• Triangle read by rows, T(n,k) = !n + (k-1)*(n-1)!, with n>=1, 1<=k<=n; Position of the first n-letter permutation beginning with number k in the list of lexicographically sorted permutations A030299.at n=37A237450
• Numbers k such that the factor method (A064097) for computing the k-th power has fewer multiplications than Knuth's power tree method (A114622).at n=5A256653
• Triangle read by rows: T(n,k) is the number of open meanders with 2n crossings and k exterior top arches, 0 <= k <= n.at n=38A380369